Res Rustica

Columella, Lucius Junius Moderatus

Columella. On agriculture, Volume 1-2. Ash, Harrison Boyd; Foster, Edward Seymour; Heffner, Edward H., editors. Cambridge, MA; London: Harvard University Press; William Heinemann, Ltd., 1941.

Castrare vitulos Mago censet, dum adhuc teneri sunt; neque id ferro facere, sed fissa 1 ferula comprimere testiculos, et paulatim confringere. Idque optimum genus castrationum putat, quod adhibetur aetati tenerae sine vulnere.